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Marine Depot Aquarium Refractometer

Marine Depot Aquarium Refractometer

The Refractometer is a must have for all aquarium hobbyists. The proper salinity is crucial for the survival and health of your fish and corals . This high quality refractometer is extremely accurate and easy to use and calibr...

$49.99
Marine Depot Aquarium Pro Refractometer

Marine Depot Aquarium Pro Refractometer

Designed specifically for aquarium use to measure the salinity of natural sea water (NSW). Most handheld saltwater refractometers available in the hobby are designed and calibrated for testing brine solution, i.e. sodium chlorid...

$64.99
Coralife Deep Six Hydrometer Wide Range Specific Gravity Meter

Coralife Deep Six Hydrometer Wide Range Specific Gravity Meter

The re-designed deep six hydrometer with improved calibration and bubble diffuser ensures more accurate readings of your aquarium salt levels. Also includes a built in base so you can rest the hydrometer on a counter top or other ...

$7.49
Captive Purity Refractometer

Captive Purity Refractometer

The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Rea...

From $59.99
Hagen Living Sea Floating Hydrometer with Thermometer, C & F

Hagen Living Sea Floating Hydrometer with Thermometer, C & F

Hagen Living Sea Hydrometer with Thermometer—Small 20cm (8") Accurate Easy to read Thermometer—C & F

From $7.99
Instant Ocean SeaTest Hydrometer

Instant Ocean SeaTest Hydrometer

Instant Ocean Hydrometer`s new improved design delivers precise full-range salinity and specific gravity readings - accurate to 0.001 - every time. Easy-fill convenience keeps hands dry when filling. It has a durable, permanent ne...

$13.49
Milwaukee Instruments Protective Hardshell Case for Refractometers & Photometers

Milwaukee Instruments Protective Hardshell Case for Refractometers & Photometers

Milwaukee Protective Hardshell Case for Milwaukee Refractometers and Photometers

$22.99
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